CN209880867U

CN209880867U - Electrical connector

Info

Publication number: CN209880867U
Application number: CN201920593421.8U
Authority: CN
Inventors: 赵景岩
Original assignee: PROUD PRECISION ELECTRONICS (SUZHOU) CO Ltd
Current assignee: PROUD PRECISION ELECTRONICS (SUZHOU) CO Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2019-12-31
Anticipated expiration: 2029-04-22

Abstract

The utility model discloses an electric connector, which comprises an insulating body, a plurality of accommodating grooves, a positioning groove and a plurality of adjusting grooves, wherein each accommodating groove is provided with the positioning groove; the signal terminals are respectively and correspondingly accommodated in the accommodating grooves, the plate surfaces and the plate surfaces of every two adjacent signal terminals are oppositely arranged, each signal terminal is provided with a base part, one end of each base part is provided with a contact part, the other end of each base part is provided with a guide connection part, a fixing part extends from each base part and is fixedly held in the positioning groove, and the plate surface of each fixing part is exposed out of the adjusting groove, so that the impedance adjusting effect of the signal terminals during high-frequency signal transmission is good, and the high-frequency performance of the signal terminals is good.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly to an electrical connector for inserting an electronic card.

[ background of the invention ]

A conventional slot type electric connector comprises an insulating body, wherein a slot is arranged in the longitudinal direction of the insulating body, two rows of accommodating grooves are formed in two sides of the slot and used for accommodating an upper row of terminals and a lower row of terminals, each accommodating groove is provided with a positioning groove, each terminal is provided with a vertical base, a fixing part extends forwards from the base and is inserted into the positioning groove, the fixing part is perpendicular to the base, a convex part is arranged on the upper plate edge of the fixing part and is in interference fit with the upper top surface of the positioning groove so as to fix the terminal in the accommodating groove, a welding part extends downwards from the base and is welded on a circuit board, and a contact part extends upwards from the base and is in conductive connection with an electronic card.

However, the wall surface of the positioning groove of the socket type electrical connector is basically attached to the plate surface of the fixing portion, so that the fixing portion is not exposed to the air, and the dielectric constant of the insulating body is higher than that of the air, so that the impedance of the terminal is high, which is not favorable for the transmission of high-frequency signals.

Therefore, there is a need for a new electrical connector to overcome the above problems.

[ Utility model ] content

An object of the utility model is to provide a constant head tank one side be equipped with a adjustment tank with the constant head tank intercommunication, the face of the fixed part of signal terminal appears in the adjustment tank makes the impedance of signal terminal is lower, the electric connector that high frequency performance is good.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electrical connector, comprising: the insulation body is provided with a plurality of accommodating grooves, each accommodating groove is provided with a positioning groove, and one side of each positioning groove is provided with an adjusting groove communicated with the positioning groove; the signal terminals are respectively and correspondingly accommodated in the accommodating grooves, the plate surfaces and the plate surfaces of every two adjacent signal terminals are oppositely arranged, each signal terminal is provided with a base part, one end of each base part is provided with a contact part, the other end of each base part is provided with a guide connection part, a fixing part extends from each base part and is fixedly held in the positioning groove, and the plate surface of each fixing part is exposed out of the adjusting groove.

Furthermore, the adjusting groove is formed by opening the rear end face of the insulating body forwards, and at least half area of the plate surface of the fixing part is exposed to the adjusting groove.

Further, the adjusting groove extends upwards to the upper part of the fixing part, and the fixing part is exposed above the adjusting groove.

Furthermore, an elastic arm extends upwards from one end of the base in an inclined mode, the contact portion is formed on the elastic arm, and the adjusting groove is formed in the adjacent side of the joint of the fixing portion and the elastic arm.

Furthermore, the accommodating grooves are arranged in a row along the longitudinal direction of the insulating body, and at least two adjacent positioning grooves are communicated with each other.

Furthermore, a partition is arranged between every two adjacent signal terminals, the base part is provided with a connecting part positioned between the fixing part and the connecting part, and the partition is disconnected between the connecting part and the connecting part to form a groove.

An electrical connector, comprising: the insulating body is provided with a plurality of accommodating grooves from the rear end face to the front, and each accommodating groove is provided with a positioning groove; the adjusting groove is formed by being formed in a way that the adjusting groove is formed forwards from the rear end face of the insulating body and is communicated with the positioning groove; the signal terminals are respectively and correspondingly accommodated in the accommodating grooves, the plate surfaces and the plate surfaces of every two adjacent signal terminals are oppositely arranged, each signal terminal is provided with a base part, one end of each base part is provided with a contact part, the other end of each base part is provided with a guide connection part, a fixing part extends from each base part and is fixedly held in the positioning groove, the plate surface of each fixing part is exposed out of the corresponding adjusting groove, and the part, connected with the fixing part, of each base part is exposed out of the corresponding adjusting groove.

Furthermore, at least half area of the plate surface of the fixing part is exposed to the adjusting groove.

Compared with the prior art, the utility model discloses following beneficial effect has:

the adjusting groove is arranged on one side of the positioning groove and communicated with the positioning groove, so that the area of the board surface of the fixing part exposed in the adjusting groove and exposed in the air is increased, and the dielectric constant of the air is small, so that the signal terminal has a good impedance adjusting effect and good high-frequency performance when transmitting high-frequency signals.

[ description of the drawings ]

Fig. 1 is a schematic perspective exploded view of the electrical connector of the present invention;

fig. 2 is a top view of the electrical connector of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a perspective cross-sectional view of the electrical connector of the present invention;

fig. 5 is a perspective cross-sectional view of the electrical connector of the present invention from another perspective;

fig. 6 is a perspective assembly view of the electric connector of the present invention;

fig. 7 is an enlarged view of B in fig. 6.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

front end face 11 of insulating body 1 of electric connector 100

Rear end face 12, top wall 13, bottom wall 14

Slot 15 first receiving slot 16 positioning slot 161

Adjusting groove 162 and groove 18 of partition 17

Second housing groove 19 first terminal 2 signal terminal 2a

Ground terminal 2b base 21 fixing part 22

Convex part 221 elastic arm 23 first contact part 24

Second terminal 3 with connecting part 25 and connecting part 26

Second contact portion 31

[ detailed description ] embodiments

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.

As shown in fig. 1 to 3, the electrical connector 100 of the present invention is used for docking an electronic card (not shown) to a circuit board (not shown), and includes an insulative housing 1, and a plurality of first terminals 2 and a plurality of second terminals 3 are received in the insulative housing 1.

As shown in fig. 4, 6 and 7, the insulative housing 1 is elongated, and the insulative housing 1 is formed by injection molding and has a front end 11 and a rear end 12 opposite to each other, and a top wall 13 and a bottom wall 14 opposite to each other, the top wall 13 is located above the bottom wall 14, and the bottom wall 14 connects the front end 11 and the rear end 12 in a front-back manner. A slot 15 is recessed backward from the front end surface 11, the slot 15 extends along a longitudinal direction, the insulative housing 1 is provided with a plurality of first receiving slots 16 arranged at one side of the slot 15 along the longitudinal direction for receiving a plurality of first terminals 2, the first receiving slots 16 are formed by opening forward from the rear end surface 12, each first receiving slot 16 has a positioning slot 161, the positioning slot 161 is formed by extending from an inner wall of the first receiving slot 16 to the front end surface 11, the left and right sides of the positioning slot 161 are respectively provided with an adjusting slot 162, in this embodiment, the adjusting slot 162 extends obliquely forward from the rear end surface 12 to communicate with the positioning slot 161, and the adjusting slot 162 extends forward to a half of the length of the positioning slot 161 (i.e. the length along the front-rear direction), the adjusting slot 162 extends upward higher than the positioning slot 161 (in other embodiments, the height of the adjusting groove 162 along the vertical direction may be smaller than the height of the positioning groove 161, and may extend from the rear end surface 12 to the foremost end of the positioning groove 161), so that the distance between two adjacent positioning grooves 161 is reduced, the two adjacent adjusting grooves 162 are communicated with each other at the rear end thereof, so that the size of the mold core for producing the insulating body 1 is increased, and the strength is better, the two adjacent positioning grooves 161 near the glue inlet of the insulating body 1 are communicated with each other, in this embodiment, two adjacent positioning grooves 161 at each end of a row of the first receiving grooves 16 are communicated with each other, so as to increase the size of the mold core forming the positioning grooves 161, enhance the strength of the mold core, prevent the mold core near the glue inlet from being damaged by molten plastic when producing the insulating body 1, and a plurality of spacers 17 are disposed below the adjusting groove 162 of the insulating body 1, each partition 17 separates two adjacent receiving slots, and a groove 18 is formed by recessing forward from the rear end face 12, so that each partition 17 is disconnected at two sides of the groove 18 in the vertical direction.

As shown in fig. 2, 3 and 5, a plurality of second receiving grooves 19 are formed to be recessed rearward from the front end surface 11 to receive the plurality of second terminals 3, the plurality of second receiving grooves 19 are arranged at intervals below the insertion groove 15 and communicate with the insertion groove 15, and the first receiving grooves 16 and the second receiving grooves 19 are arranged at a position shifted in the arrangement direction to prevent the first terminals 2 and the second terminals 3 from being short-circuited.

As shown in fig. 1 and 4, the first terminals 2 are respectively assembled into the first receiving grooves 16 from the rear end surface 12, the first terminals 2 include a plurality of signal terminals 2a and a plurality of ground terminals 2b, the signal terminals 2a and the ground terminals 2b have the same structure, the plate surfaces and the plate surfaces of two adjacent signal terminals 2a are oppositely arranged, the plate surface of the ground terminal 2b and the plate surface of the signal terminal 2a are oppositely arranged, one barrier 17 is provided between two adjacent signal terminals 2a to prevent the two adjacent signal terminals 2a from interfering with each other when transmitting signals, one ground terminal 2b is provided between every two signal terminals 2a to block the crosstalk between the two signal terminals 2a on both sides of the ground terminal 2b, and the barrier 17 is not provided between the ground terminal 2b and the signal terminal 2a so that the ground terminal 2b and the signal terminal 2a are not provided The terminal 2b and the base 21 of the signal terminal 2a on both sides thereof are exposed to the air, so that the electric charge electric field intensity of the ground terminal 2b and the signal terminal 2a is small, the stored energy is weak, and the ground mode resonance of the ground terminal 2b to the signal terminal 2a is reduced.

As shown in fig. 3 to 5, each of the signal terminals 2a has a base portion 21, the base portion 21 is in a vertical flat plate shape, a fixing portion 22 extends from the base portion 21 to the front end surface 11, an upper plate edge of the fixing portion 22 protrudes upwards to form two protruding portions 221, one of the protruding portions 221 located at the front end of the fixing portion 22 is in interference fit with the positioning slot 161 to hold the fixing portion 22 in the positioning slot 161, one of the protruding portions 221 located at the rear end of the fixing portion 22 and connected to the base portion 21 is exposed above the adjustment slot 162, and half of the area of the plate surface on opposite sides of the fixing portion 22 is exposed in the air of the adjustment slot 162 and half is not exposed in the adjustment slot 162 and is in contact with the inner wall surface of the positioning slot 161, so as to weaken signal radiation during transmission of high-frequency signals and thus weaken the stake effect at the fixing portion 22, and the adjacent two fixing portions 22 are bent upward to extend an elastic arm 23 from the upper end of the base 21, the adjusting groove 162 is located at the adjacent side of the joint of the fixing portion 22 and the elastic arm 23, so that the joint of the elastic arm 23 and the base 21 is exposed to the air, a middle buffer effect is generated when high frequency signals are transmitted between the elastic arm 23 and the base 21, a first contact portion 24 bent forward from the end of the elastic arm 23 protrudes from the first receiving groove 16 and is exposed at the upper portion of the insertion groove 15, a guide connection portion 25 extended from the lower end of the base 21 is connected with the circuit board, a material connection portion 26 extended backward from the base 21, the material connection portion 26 is located between the fixing portion 22 and the guide connection portion 25, and the groove 18 is located between the material connection portion 26 and the guide connection portion 25, in order to enhance the coupling between two adjacent signal terminals 2a, and simultaneously the portion between the connecting portion 26 and the connecting portion 25 is exposed to the air, so as to disturb the ground mode resonance of the ground terminal 2b to the signal terminals 2a, and improve the high-frequency performance, a plurality of second terminals 3 are correspondingly accommodated in a plurality of second accommodating grooves 19, each second terminal 3 has a second contact portion 31 exposed at the lower portion of the insertion groove 15, and the plurality of first contact portions 24 and the plurality of second contact portions 31 respectively connect the electronic card up and down in the insertion groove 15.

To sum up, the utility model discloses an electric connector 100 has following beneficial effect:

(1) the adjusting groove 162 is disposed on one side of the positioning groove 161 and is communicated with the positioning groove 161, so that the area of the board surface of the fixing portion 22 exposed to the adjusting groove 162 and exposed to the air is increased, and the dielectric constant of the air is small, so that the impedance adjusting effect of the signal terminal 2a is good when transmitting a high-frequency signal, and the high-frequency performance is good.

(2) The area of the plate surface of the fixing portion 22 exposed to the air by the adjusting groove 162 is increased, and the dielectric constant of the air is small, so that the electric field intensity of the charges of the grounding terminal 2b and the signal terminal 2a is small, the stored energy is weak, the ground mode resonance of the grounding terminal 2b to the signal terminal 2a is reduced, and the high-frequency performance of the electrical connector 100 is good.

(3) One side of the positioning groove 161 is provided with the adjusting groove 162 communicated with the positioning groove 161, so that the size of the mold core for producing the insulation body 1 is increased, the strength is better, and the mold core is not easily damaged by molten plastic; meanwhile, the adjusting groove 162 is formed on one side of the positioning groove 161 to increase the width of the first accommodating groove 16, so that the first terminal 2 is easy to mount and good in guiding when being assembled into the insulating body 1 from the back to the front.

(4) The partition 17 is disposed between two adjacent signal terminals 2a, so as to prevent the two adjacent signal terminals 2a from interfering with each other when transmitting high-frequency signals, the partition 17 is broken between the conductive portion 25 and the connecting portion 26 to form a groove 18, so that the portion of the signal terminal 2a between the conductive portion 25 and the connecting portion 26 is exposed to the air, so as to enhance the coupling effect between the two adjacent signal terminals 2 a.

(5) The adjusting groove 162 extends forward from the rear end surface 12 to a position half of the length of the positioning groove 161, so that at least half of the area of the plate surface of the fixing portion 22 is exposed to the adjusting groove 162 and exposed to the air, half of the signal is not exposed to the adjustment groove 162 and is in contact with the inner wall surface of the positioning groove 161, so that the signal radiation when a high-frequency signal is transmitted can be weakened, thereby reducing the piling effect at the fixing parts 22, and improving the impedance and crosstalk between two adjacent fixing parts 22 due to the reduction of the wall thickness of the positioning slot 161, meanwhile, the adjustment groove 162 extends to half of the length of the positioning groove 161, and increasing the adjustment groove 162 enables the guide portion 25 to be easily removed from the positioning groove when severe tin siphon occurs, the adjusting groove 162 can store solder and prevent the solder from extending upward to affect the electrical connection between the first contact portion 24 and the electronic card.

(6) Because the adjusting groove 162 is disposed adjacent to the joint of the fixing portion 22 and the elastic arm 23, the joint of the elastic arm 23 and the base 21 is exposed to the air, a middle buffer effect is generated when high-frequency signals are transmitted between the elastic arm 23 and the base 21, and because the fixing portion 22 is connected to the elastic arm 23, the adjusting groove 162 extends upward above the fixing portion 22, so that the gap between the fixing portion 22 of the elastic arm 23 and the inner wall of the first accommodating groove 16 is increased, and the elasticity of the elastic arm 23 is enhanced.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.

Claims

1. An electrical connector, comprising:

the insulation body is provided with a plurality of accommodating grooves, each accommodating groove is provided with a positioning groove, and one side of each positioning groove is provided with an adjusting groove communicated with the positioning groove;

the signal terminals are respectively and correspondingly accommodated in the accommodating grooves, the plate surfaces and the plate surfaces of every two adjacent signal terminals are oppositely arranged, each signal terminal is provided with a base part, one end of each base part is provided with a contact part, the other end of each base part is provided with a guide connection part, a fixing part extends from each base part and is fixedly held in the positioning groove, and the plate surface of each fixing part is exposed out of the adjusting groove.

2. The electrical connector of claim 1, wherein: the adjusting groove is formed by opening the rear end face of the insulating body forwards, and at least half area of the plate surface of the fixing part is exposed to the adjusting groove.

3. The electrical connector of claim 2, wherein: the adjusting groove extends upwards to the upper part of the fixing part, and the fixing part is exposed above the adjusting groove.

4. The electrical connector of claim 1, wherein: an elastic arm extends upwards from one end of the base in an inclined mode, the contact portion is formed on the elastic arm, and the adjusting groove is formed in the adjacent side of the joint of the fixing portion and the elastic arm.

5. The electrical connector of claim 1, wherein: the accommodating grooves are arranged in a row along the lengthwise direction of the insulating body, and at least two adjacent positioning grooves are mutually communicated.

6. The electrical connector of claim 1, wherein: a partition is arranged between every two adjacent signal terminals, the base part is provided with a connecting part positioned between the fixing part and the connecting part, and the partition is disconnected between the connecting part and the connecting part to form a groove.

7. An electrical connector, comprising:

the insulating body is provided with a plurality of accommodating grooves from the rear end face to the front, and each accommodating groove is provided with a positioning groove;

the adjusting groove is formed by being formed in a way that the adjusting groove is formed forwards from the rear end face of the insulating body and is communicated with the positioning groove;

the signal terminals are respectively and correspondingly accommodated in the accommodating grooves, the plate surfaces and the plate surfaces of every two adjacent signal terminals are oppositely arranged, each signal terminal is provided with a base part, one end of each base part is provided with a contact part, the other end of each base part is provided with a guide connection part, a fixing part extends from each base part and is fixedly held in the positioning groove, the plate surface of each fixing part is exposed out of the corresponding adjusting groove, and the part, connected with the fixing part, of each base part is exposed out of the corresponding adjusting groove.

8. The electrical connector of claim 7, wherein: at least half area of the plate surface of the fixing part is exposed to the adjusting groove.

9. The electrical connector of claim 8, wherein: the adjusting groove extends upwards to the upper part of the fixing part, and the fixing part is exposed above the adjusting groove.

10. The electrical connector of claim 7, wherein: an elastic arm extends upwards from one end of the base in an inclined mode, the contact portion is formed on the elastic arm, and the adjusting groove is formed in the adjacent side of the joint of the fixing portion and the elastic arm.